html, body
{
margin: 0px;
padding: 0px;
}

body
{
color: #000;
font-size: 12px;
font-family: Arial, Helvetica, sans-serif;
line-height: 25px;
text-align: justify;
}





/* Core CSS */
#content
{
margin: auto;
width: 100%;


display:
 "aa" /50px
 "bc" /600px
 "dd"
 75% 25%
 ;


}

#header { position: a; }
#map { position: b; }
#saveForm { position: c; }
#footer { position: d; }

#content::slot(a) { background: #eee; }
#content::slot(b) { background: #ddd; }
#content::slot(c) { background: #ccc; }
#content::slot(d) { background: #bbb; }